screen grid

screen grid
noun
: a grid placed between the plate and the control grid of an electron or vacuum tube to eliminate the effect of plate-potential variations on the control grid

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Electronics.
a grid placed between the anode and the control electrode in a vacuum tube, usually maintained at a fixed positive potential.
[1925-30]

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screen grid noun
An electrode placed between the control grid and anode in a valve, having an invariable potential to eliminate positive feedback and instability
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Main Entry:screen

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screen grid,
an electrode placed between the control grid and the plate of certain vacuum tubes to reduce capacitance between the electrodes.

Useful english dictionary. 2012.

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Look at other dictionaries:

  • Screen grid — The screen grid is a grid introduced into a vacuum tube (thermionic valve) to greatly reduce the capacitance between two other parts of the electrode structure.In its simplest form, a screen grid is placed between the control grid and anode or… …   Wikipedia

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  • screen grid — Electronics. a grid placed between the anode and the control electrode in a vacuum tube, usually maintained at a fixed positive potential. [1925 30] * * * …   Universalium

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